* {
    padding: 0;
    margin: 0;
}
html,body,#app {
    width: 100%;
    height: 100%;
  }
div,
h1,
h2,
h3,
h4,
h5,
h6,
p {
    box-sizing: border-box;
}
:root:root {
    --van-nav-bar-title-font-size: 28px;
    --van-line-height-lg: 28px;
    --van-cell-font-size: 20px;
    --van-button-normal-font-size: 20px;
    --van-field-error-message-font-size: 20px;
    --van-cell-value-font-size: 24px;
}